Friction-coupling.



P. DAIMLER.

FR'ICTION COUPLING.

APPLIOATION FILED 11u11, 190s.

P. DAIMLER. EMOTION GQUPLING. APPLICATION FILED MASH I Patented Dec. 8, 1908.

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P. DAIMLER.

' FBIGTION GOUPLING.

APPLmATIoN FILED I AY 11. 190s.

905,994. Patented Dec. 8,1908.

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. coupling according to the resent invention.'

UNITED STATESA PATENT OFFICE.

PAUL DAIMLER, or UNTE'RTRKHEIM, NEAR STUTTGART, GERMANY, AssrGNoR To DAIMLER MoToRENGEsELLscHAFT, 0F UNTERTRKHErM-STUTTGART, GERMANY.

FRICTION-CO UPLING.

No. 905,994.V

' Specification of Letters Patent.

Patented me. s', 190e.

Application med Maru, 190s. serial-No. 432,259.

in which two oppositely larranged frlction members are moved in opposite directions by means oflevers for' the urposefof engaging or disengaging the couplping. l According to the present invention the actuating levers are connected to one of the relativelyr movable friction members only and further actuating mechanism is inter 4posed `between the concentrically arran ed ubs of the sliding friction members so t at when one of the members is moved in one di-4 rection the other member is moved in the opposite direction.-

The accompanying drawings illustrate the present invention in one convenient form alpplied to an automobile and used between t engine shaft and the axledrivin shaft.

VFigure 1 is a section throug a friction Fig. 2 1s a section on the line A-B of Fig. 1

-with parts removed. Fig. 3 is a section on the line C-D of Fig. 1I .4 is a plan partly in section with the conicalfriction surfaces `removed so as lto show arrangement of the hubs and actuating levers.

`According to the form of this invention illustrated the foot treadle lever a is pivoted at b to a-suitable part of the automobile frame..y

The hub of the lever a is also provided With 'a nose piece c adapted t operate a double armed lever d which is onnected,4 by means of a forked lever g to the trunnions i ofl a gimbal ring adapted through a ball bearing k to bear agai ist the 4end of the hub Z of one of the friction members m. The lever .g is piv-4 oted at h to'the vehicle frame. The hub l surrounds tlie shaft n and is slidable thereon while at the same time it is fixed by means of feathers n as indicated to rotatewith said,

shaft. j

. On the exterior of the huby [there is arranged a further hub o belonging tothe other' The hub o 1s slidable on friction member p. but rotatable with the hub Z and both fric,- tio'n-members p and m are normally `held apart by means of a spring g surrounding the German Empire, have in-v hub 0'. vThe relatively slidabl'e friction mein Abers 'p and m are provided with conica-l fric fixed to the other shaft, s'ay the Ydriven shaft of the pair.

v On the end4 of the shaft 11. there are ar ranged two centrally pivoted levers t and fu;

vwhich are bent in the form shown in Fig. 2.

The hub Z is provided-With diametrically opposite projections l -which engage one with the upper end of lever u andthe other with the lower end of lever t as can be seen in Fig.

2. In Fig. 1 the lower projection l is not shown insection-and' the lever u is shown complete. It be understood from Fig. l2

that the lower end of the lever u does not bear against the hub l but against thehub o I which 1s also 'provided with projection parts adapnted to coperate with the opposite ends of t e levers t vand u .to those which bear 'against the projecting parts l. In Fig. 3.

the dotted lines indicating the levers t and u' show clearly how these levers are. arran ed.

It will be` seen from the drawings that w en the lever actuating means a g are operated the member mis moved to the left and simultaneouslyvthe separate lever mechanism 't u is brought into operation by the concentrically arranged hubs totransrnit to the member p.

an oppositely directed motion- I claimt-f. 1. A friction clutch having inconjunction ywith a driving and a driven shaft, two oppositely arranged conical frlctlon members relatively slidable on one of said shafts and having their hubs arranged concentrically', a co-actmg friction surface carrymg member on the other shaft, a spring surrounding the concentric hubs of t e- .mcvable `fr1ction members and normally holding said members in engagement with-their co-actin'g friction surfaces, lever mechanism engaging one of said. relatively moving friction members and levers pivoted to the shaft carrying the friction members and coperating with the concentrically arranged hubs of said members for simultaneously transmitting an opp'ositely directed motion to the'other movablefrrction member.

2. A friction clutch'liaving in combination -with a driving and a driven shaft relatively movable friction members mounted on one the friction members in engagement with 10 of said shafts with concentrically arranged their co-actng surfaces.

hubs, a member carrying co-actng frict1on In Witness whereof I have hereunto set my surfaces carried by the other shaft, projechand in the presence of two Witnesses.

'tions on the concentrically arranged hubs of the relatively moving members, levers piv- PAUL DAMLER' oted on the carrying shaft, said levers bear- Witnesses: in at opposite ends against projections 'on ROBERT UHLAND,

di erent hubs and a spring normally holding ERNEST AENTENMANN. 

